Now, my impression is that I can use the subwoofer out of my Denon amplifier, split using a Y cable and plug it as the left & right input of the amplifier mentioned above. I can then use the left channel to power the Aura, and the right channel to power the dayton transducers.

Is this correct?

Any suggestions, improvements or corrections are very welcome! My budget is already stretched with the above items so please do keep that in mind